Final answer:
Instances of balance in the Iroquois Creation Story include the grandmother's love and hate for her grandsons, and the animals and waterfowl supporting the sky woman, making option c) the correct choice.
Step-by-step explanation:
The Iroquois Creation Story reflects the Iroquois belief in balance through several instances. One instance is A. the grandmother's love for one twin and hate for the other, showcasing the balance of emotions and relationships. Another instance is C. the waterfowl and animals holding the woman who fell from heaven, which demonstrates the balance between different beings working together to support life. However, choice B. about the grandmother and her daughter digging potatoes together does not directly reflect the concept of balance within Iroquois belief, as mentioned in the resources provided. Therefore, the correct answer to the question showing instances of balance in the Iroquois belief system is c) A and C.